rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P43/1:b..l
rcu: 	(detected by 1, t=10503 jiffies, g=38789, q=601 ncpus=2)
task:kworker/1:1     state:R  running task     stack:20792 pid:43    tgid:43    ppid:2      task_flags:0x4208060 flags:0x00004000
Workqueue:  0x0 (events)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5360 [inline]
 __schedule+0x1798/0x4cc0 kernel/sched/core.c:6964
 preempt_schedule_irq+0xb5/0x150 kernel/sched/core.c:7291
 irqentry_exit+0x6f/0x90 kernel/entry/common.c:211
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:__preempt_count_add kernel/rcu/tree.c:747 [inline]
RIP: 0010:rcu_is_watching+0x6/0xb0 kernel/rcu/tree.c:750
Code: e8 9f 31 65 03 eb cc 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 41 57 <41> 56 53 65 ff 05 d0 e9 40 11 e8 bb f4 e4 09 89 c3 83 f8 08 73 65
RSP: 0018:ffffc90000b375b0 EFLAGS: 00000297
RAX: 0000000000000001 RBX: 0000000000000001 RCX: ffff88801daf5ac0
RDX: 0000000000000000 RSI: ffffffff82300a2a RDI: ffffffff8e53c820
RBP: 0000000000000001 R08: ffff88801c9a2ecf R09: 1ffff110039345d9
R10: dffffc0000000000 R11: ffffed10039345da R12: ffff88801c9a2ed0
R13: ffffffff82300a2a R14: ffffffff8e53c820 R15: 000000000003d3c9
 trace_lock_release include/trace/events/lock.h:69 [inline]
 lock_release+0x4b/0x3e0 kernel/locking/lockdep.c:5879
 rcu_lock_release include/linux/rcupdate.h:341 [inline]
 rcu_read_unlock include/linux/rcupdate.h:871 [inline]
 __page_table_check_zero+0x406/0x530 mm/page_table_check.c:145
 page_table_check_free include/linux/page_table_check.h:43 [inline]
 free_pages_prepare mm/page_alloc.c:1395 [inline]
 __free_frozen_pages+0xbd7/0xd30 mm/page_alloc.c:2906
 discard_slab mm/slub.c:3252 [inline]
 __put_partials+0x146/0x170 mm/slub.c:3715
 put_cpu_partial+0x17c/0x250 mm/slub.c:3790
 __slab_free+0x2b9/0x390 mm/slub.c:5615
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x97/0x140 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:349
 kasan_slab_alloc include/linux/kasan.h:250 [inline]
 slab_post_alloc_hook mm/slub.c:4770 [inline]
 slab_alloc_node mm/slub.c:5068 [inline]
 __kmalloc_cache_noprof+0x36f/0x6f0 mm/slub.c:5452
 kmalloc_noprof include/linux/slab.h:956 [inline]
 __kthread_create_on_node+0xef/0x3e0 kernel/kthread.c:510
 kthread_create_on_node+0xdd/0x130 kernel/kthread.c:587
 create_worker+0x299/0x720 kernel/workqueue.c:2802
 maybe_create_worker kernel/workqueue.c:3063 [inline]
 manage_workers kernel/workqueue.c:3140 [inline]
 worker_thread+0x33e/0xda0 kernel/workqueue.c:3402
 kthread+0x711/0x8a0 kernel/kthread.c:463
 ret_from_fork+0x4bc/0x870 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>